[alsa-devel] Bug in sound-unstable-2.6 ice1724

[Takashi Iwai]

At Tue, 21 Oct 2008 10:49:18 +0200,
=?UTF-8?Q?Vedran_Mileti=C4=87?= wrote:
> 
> No, that didn't fix it. :-(
> 
> vedran at kalopsia:~/Media$ mplayer -ao alsa:device=hw=1.0 -srate 22050
> -format s32le get_video
> MPlayer 1.0rc2-4.3.1-DFSG-free (C) 2000-2007 MPlayer Team
> CPU: AMD Athlon(tm) Dual Core Processor 4450e (Family: 15, Model: 107,
> Stepping: 2)
> CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
> Compiled with runtime CPU detection.
> mplayer: could not connect to socket
> mplayer: No such file or directory
> Failed to open LIRC support. You will not be able to use your remote control.
> 
> Playing get_video.
> libavformat file format detected.
> [lavf] Video stream found, -vid 0
> [lavf] Audio stream found, -aid 1
> VIDEO:  [FLV1]  320x240  0bpp  29.970 fps    0.0 kbps ( 0.0 kbyte/s)
> ==========================================================================
> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
> Selected video codec: [ffflv] vfm: ffmpeg (FFmpeg Flash video)
> ==========================================================================
> ==========================================================================
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> AUDIO: 22050 Hz, 2 ch, s16le, 8.0 kbit/1.13% (ratio: 1000->88200)
> Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> AO: [alsa] 22050Hz 2ch s32le (4 bytes per sample)
> Starting playback...
> VDec: vo config request - 320 x 240 (preferred colorspace: Planar YV12)
> VDec: using Planar YV12 as output csp (no 0)
> Movie-Aspect is undefined - no prescaling applied.
> VO: [xv] 320x240 => 320x240 Planar YV12
> A: 240.8 V: 245.3 A-V: -4.502 ct: -4.382 3350/3350  0%  0%  0.4% 0 0
> [AO_ALSA] alsa-lib: pcm_hw.c:488:(snd_pcm_hw_drain)
> SNDRV_PCM_IOCTL_DRAIN failed: Input/output error

Did you build with CONFIG_SND_DEBUG=y?  I guess you get a kernel error
message like "playback drain error (DMA or IRQ..."

If so, a relevant patch is 1083206ff44af4baa03573b4a6bac430d9d70404,
    ALSA: ice1724 - Fix TX IRQ lockup

Try to revert it.


thanks,

Takashi

> 
> Exiting... (End of file)
> 
> 2008/10/20 Takashi Iwai <tiwai at suse.de>:
> > At Sun, 19 Oct 2008 11:36:35 +0200,
> > =?UTF-8?Q?Vedran_Mileti=C4=87?= wrote:
> >>
> >> I have:
> >> 01:0a.0 Multimedia audio controller: VIA Technologies Inc. VT1720/24
> >> [Envy24PT/HT] PCI Multi-Channel Audio Controller (rev 01)
> >>       Subsystem: TERRATEC Electronic GmbH PHASE 22
> >>       Flags: bus master, medium devsel, latency 64, IRQ 16
> >>       I/O ports at c880 [size=32]
> >>       I/O ports at c800 [size=128]
> >>       Capabilities: [80] Power Management version 1
> >>       Kernel driver in use: ICE1724
> >>       Kernel modules: snd-ice1724
> >> I do this:
> >> mplayer -ao alsa:device=hw=1.0 -srate 44100 -format s32le get_video
> >> Before the song ends, last sample loops for about 20-30 times, and
> >> then mplayer quits with error:
> >> alsa-lib: pcm_hw.c:488:(snd_pcm_hw_drain) SNDRV_PCM_IOCTL_DRAIN
> >> failed: Input/output error
> >>
> >> This doesn't happen on sound-2.6 and doesn't happen on
> >> sound-unstable-2.6 with E-mu 1212m.
> >
> > A suspicious commit is the one in topic/test branch,
> >
> >  commit 442dac7e02a835944bd4d6e429d0b4a2446e0204
> >  Author: Takashi Iwai <tiwai at suse.de>
> >  Date:   Tue Aug 12 13:39:02 2008 +0200
> >
> >    ALSA: Allow drain ioctl for non-blocking mode
> >
> > Could you try to revert this commit?
> >
> >
> > thanks,
> >
> > Takashi
> >
> 
> 
> 
> -- 
> Vedran Miletić